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Apparatus and method for blending multiple images

a technology of multiple images and blending, applied in the field of image processing, can solve the problems of deteriorating picture quality, inability of conventional imaging devices to capture or display all images visible to the naked human eye,

Active Publication Date: 2015-03-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution effectively generates high-quality multi-exposure images by adjusting exposure times and using weight-based blending, resulting in clear and detailed images that can be displayed on devices with small dynamic ranges, enhancing the representation of scenes with varying luminance levels.

Problems solved by technology

In other words, the conventional imaging devices cannot capture or display all images visible to the naked human eye.
However, the conventional image blending methods described above may deteriorate picture quality when applied to displays with small dynamic ranges (DRs).

Method used

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  • Apparatus and method for blending multiple images

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Embodiment Construction

[0031]The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses and / or systems described herein. Accordingly, various changes, modifications, and equivalents of the systems, apparatuses, and / or methods described herein will likely suggest themselves to those of ordinary skill in the art. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.

[0032]FIG. 1 illustrates an exemplary method of generating multiple images based on gradation levels.

[0033]Referring to FIG. 1, a multiple image blender 100 receives a plurality of images of a scene created using different exposure settings and blends the images to generate multiple images. For example, the multiple image blender 100 receives a long-exposure image 110 and a short-exposure image 115 and blends the long-exposure image 110 and the short-exposure image 115 to generate a plurality of images 120, 12...

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Abstract

Disclosed is an apparatus to blend a high dynamic range (HDR) image or a plurality of images captured with different exposure settings to multiple images, and a method thereof. A multiple image blender receives a high dynamic range (HDR) image or a plurality of images captured with different exposure settings, and controls setting of one or more areas of interest or setting of one or more gradation levels, and combines and blends the HDR image or the plurality of images captured with different exposure settings corresponding to each area of interest or at each gradation level, and generates at least one multi-exposure image.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit under 35 U.S.C. §119(a) of a Korean Patent Application No. 10-2008-0127958, filed Dec. 16, 2008, the disclosure of which is incorporated herein by reference in its entirety for all purposes.BACKGROUND[0002]1. Field[0003]The following description relates to image processing, and more particularly, to a technology of blending a high dynamic range (HDR) image or a plurality of images captured with different exposure settings to create multiple images.[0004]2. Description of the Related Art[0005]A dynamic range (DR) of a digital image is defined as a ratio of a brightness of a darkest pixel of the digital image with respect to a brightness of a brightest pixel of the digital image. However, human visual response is measured by a system known as the Human Visual System (HVS), which has a dynamic range which is much higher than dynamic ranges of conventional imaging devices such as digital cameras and monitors...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06K9/36G06T5/50
CPCG06T5/50G06T7/11G06T2207/20221G06T2207/20208G06T5/90
Inventor KWON, JAE-HYUNCHOE, WON-HEELEE, SEONG-DEOK
Owner SAMSUNG ELECTRONICS CO LTD